From patchwork Wed Oct 28 12:43:16 2020 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Colin King X-Patchwork-Id: 11862731 Return-Path: X-Spam-Checker-Version: SpamAssassin 3.4.0 (2014-02-07) on aws-us-west-2-korg-lkml-1.web.codeaurora.org X-Spam-Level: X-Spam-Status: No, score=-12.7 required=3.0 tests=BAYES_00, HEADER_FROM_DIFFERENT_DOMAINS,INCLUDES_PATCH,MAILING_LIST_MULTI,SIGNED_OFF_BY, SPF_HELO_NONE,SPF_PASS,URIBL_BLOCKED,USER_AGENT_GIT autolearn=ham autolearn_force=no version=3.4.0 Received: from mail.kernel.org (mail.kernel.org [198.145.29.99]) by smtp.lore.kernel.org (Postfix) with ESMTP id 08969C388F7 for ; Wed, 28 Oct 2020 12:43:22 +0000 (UTC) Received: from gabe.freedesktop.org (gabe.freedesktop.org [131.252.210.177]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by mail.kernel.org (Postfix) with ESMTPS id 760D4246AD for ; Wed, 28 Oct 2020 12:43:21 +0000 (UTC) DMARC-Filter: OpenDMARC Filter v1.3.2 mail.kernel.org 760D4246AD Authentication-Results: mail.kernel.org; dmarc=fail (p=none dis=none) header.from=canonical.com Authentication-Results: mail.kernel.org; spf=none smtp.mailfrom=dri-devel-bounces@lists.freedesktop.org Received: from gabe.freedesktop.org (localhost [127.0.0.1]) by gabe.freedesktop.org (Postfix) with ESMTP id 709756E512; Wed, 28 Oct 2020 12:43:20 +0000 (UTC) Received: from youngberry.canonical.com (youngberry.canonical.com [91.189.89.112]) by gabe.freedesktop.org (Postfix) with ESMTPS id DA2D06E512; Wed, 28 Oct 2020 12:43:18 +0000 (UTC) Received: from 1.general.cking.uk.vpn ([10.172.193.212] helo=localhost) by youngberry.canonical.com with esmtpsa (TLS1.2:ECDHE_RSA_AES_128_GCM_SHA256:128) (Exim 4.86_2) (envelope-from ) id 1kXknM-0007Ge-DT; Wed, 28 Oct 2020 12:43:16 +0000 From: Colin King To: Alex Deucher , =?utf-8?q?Christian_K=C3=B6nig?= , David Airlie , Daniel Vetter , Hawking Zhang , amd-gfx@lists.freedesktop.org, dri-devel@lists.freedesktop.org Subject: [PATCH][next] drm/amd/pm: fix out-of-bound read on pptable->SkuReserved Date: Wed, 28 Oct 2020 12:43:16 +0000 Message-Id: <20201028124316.109886-1-colin.king@canonical.com> X-Mailer: git-send-email 2.27.0 MIME-Version: 1.0 X-BeenThere: dri-devel@lists.freedesktop.org X-Mailman-Version: 2.1.29 Precedence: list List-Id: Direct Rendering Infrastructure - Development List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Cc: kernel-janitors@vger.kernel.org, linux-kernel@vger.kernel.org Errors-To: dri-devel-bounces@lists.freedesktop.org Sender: "dri-devel" From: Colin Ian King A recent change added two uint16_t elements to PPTable_t and reduced the uint32_t array down to 8 elements. This results in the dev_info printing of pptable->SkuReserved[8] accessing a value that is out-of-range on array SkuReserved. The array has been shrunk by 1 element, so remove this extraneous dev_info message. Addresses-Coverity: ("Out-of-bounds read") Fixes: 1dc3c5a95b08 ("drm/amd/pm: update driver if file for sienna cichlid") Signed-off-by: Colin Ian King --- drivers/gpu/drm/amd/pm/swsmu/smu11/sienna_cichlid_ppt.c | 1 - 1 file changed, 1 deletion(-) diff --git a/drivers/gpu/drm/amd/pm/swsmu/smu11/sienna_cichlid_ppt.c b/drivers/gpu/drm/amd/pm/swsmu/smu11/sienna_cichlid_ppt.c index fa3842f460fc..0600befc6e4c 100644 --- a/drivers/gpu/drm/amd/pm/swsmu/smu11/sienna_cichlid_ppt.c +++ b/drivers/gpu/drm/amd/pm/swsmu/smu11/sienna_cichlid_ppt.c @@ -2279,7 +2279,6 @@ static void sienna_cichlid_dump_pptable(struct smu_context *smu) dev_info(smu->adev->dev, "SkuReserved[5] = 0x%x\n", pptable->SkuReserved[5]); dev_info(smu->adev->dev, "SkuReserved[6] = 0x%x\n", pptable->SkuReserved[6]); dev_info(smu->adev->dev, "SkuReserved[7] = 0x%x\n", pptable->SkuReserved[7]); - dev_info(smu->adev->dev, "SkuReserved[8] = 0x%x\n", pptable->SkuReserved[8]); dev_info(smu->adev->dev, "GamingClk[0] = 0x%x\n", pptable->GamingClk[0]); dev_info(smu->adev->dev, "GamingClk[1] = 0x%x\n", pptable->GamingClk[1]);